Hydrocarbon-burner.



T. MUEHLB'IS'EN. HYDBOCARBON BURNER. A'PPLIoATIoN FILED smnu, 1907.

922,018, Patented May 18, 1909.

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THOMAS MUEl-ILESEN, OF LOS ANGELES, CALIFORNIA.

HYDROCARBON-BURNER.

Application filed September 17, 1907.

To all 'whom it may concern:

Be it known that I, THOMAS MUEHLEISEN, a citizen of the United States, residing at Los Angeles, county of Los Angeles, State of California, have invented new and useful Improvements in Hydrocarbon-Burners, of which the following is a specification.

My invention relates to a hydro-carbon burner which is particularly adapted for use in cook ranges, boilers, furnaces or the like and the prime object thereof is to provide a burner in which the supply of hydrocarbons is regulated and adjusted by the heat of the flame so that the burner is supplied with just enough fuel for the flame.

A further object is to provide a burner which may be started without the necessity of first igniting a quantity of fuel in liquid form to start the burner.

A further object is to provide a burner which may be easily cleaned and which may be operated without any especial skill on the part of the user.

I accomplish these objects by means of the device described herein and illustrated in the accompanying drawings in which Figure 1. is a perspective view of my improved burner in place in the fire box of a range of usual construction. Fig. 2.-is a longitudinal section of the burner.

Referring to the drawings 5 designates the fire box of a range of usual construction provided with grate bars 6. To install my burner the usual fire box door is removed and a plate 7 secured to the stove by means of screws or bolts and to which plate my burner is secured.

The burner consists essentially of a vaporizing chamber 8 and a burner proper 9 secured to and supported by the vaporizing chamber. Vaporizing chamber 8 consists of a longitudinal hollow shell 10 provided with screw caps 11 on each of its ends, the shell and cap being preferably made hexagonal in cross sections. Near the front end of shell 10 an inlet pipe 12 is located which opens into the inside of shell 1() as shown in Fig. 2. A valve 13 controls the iiow through pipe 12. Directly outsidev this valve is a short pipe 14 lled with asbestos 15 or other material such as sand which will permit of a slow upward flow of fuel (oil and water) from pipe '16 but which will not permit the vapors which accumulate in chamber 8 to back up through pipe 16 to the source of fuel supply. Asbestos is particu- Specification of Letters Patent.

Patented May 18, 1909.

Serial N0. 393,301.

larly suitable for this use as it only permits the slow passage of any gas or liquid and thus obviates the possibility of any momentary pressure in the generating chamber forcing the gases back through the supply ipe.

P Supported on lugs 17 inside of shell 10 is a vaporizing box 18 which connects with inlet pipe 12 by a tube 19 which fits loosely inside the inlet pipe and extends into box 18. Box 18 has an outlet hole 20 near the middle portion of its top through which the gases which are vaporized in the box may escape into the vaporizing chamber where they are further heated. Outlet pipe 21 from the chamber projects a slight distance above the bottom thereof as shown in Fig. 2 so that no deposited matter from the vaporization of the oils will find its way into pipe 21. Pipe 21 leads downwardly and forwardly to connect with casing 22 of needle valve 23 and a plug 24 is provided on the outside of the fire box so that pipe 21 may be cleaned whenever necessary. Needle valve 23 projects inwardly into the fire box and carries onpits inner end a mixing tube 24 into which the gases generated in generatin chamber 8 are discharged. Air is admitted to the fire box through aperture 25 and is heated by the fiame and mixed with gases from the needle valve through holes 24 in mixing tube 24 and the mixture burns on emerging from the end of the mixing tube. The entrance of air atv this point 25 not only supplies air for combustion but in passing through aperture 25 it also prevents the valve from being heated to a temperature of melting. A triangular deflector 26 is provided directly in front of the mixing tube and adapted to swing on a stud 27 attached to a plate 28 which stands upon grate bars 6. By turning the deflector to various positions the flame may be thrown to any part of the fire box desired. In the position shown the flame will be evenly divided by the deflector and pass to the rear portion of the fire box. Vhen, however, the deflector is turned squarely across the path of the flame the same is thrown to the front end of the fire box.

In the operation of my burner valve 13 is first opened sufficiently to allow a small amount of fuel, preferably distillate and water, to pass into vaporizing chamber 8 whence it flows downwardly to burner 9. Needle valve 23 being opened the fuel flows out of the opening at the end thereof and may be lighted by dropping a burning` match or paper into the fire box. Immediately upon the fire being started the liquid in generating chamber 8 is vaporized and the vapor passes out through burnerl V9 to be mixed with heated air as above described and burned at the end of the mixing tube. Needle valve 23 is then adjusted to regulate the size of the flame, valve 13 Vbeing left Wide open. By thus mixing the vapors With heated air 'all noise from the burner is obviated as the usual rushing noise is due entirely to the mixing of cold air With the burning gases. rl`he fuel, being supplied under a steady pressure, will flow into vaporizing chamber 8 as long as the pressure in the vaporizing chamber is below the pressure of fuel supply. lmmediately upon the pressure in the chamber becoming greater than the fuel supply pressure the inflow of fuel is checked. Should the pressure in the vaporizing chamber momentarily exceed that of the fuel supply asbestos plug 15 will prevent the gases from the vaporizing chamv ber from backing up into the fuel tank. rEhe forward end of the vaporizing chamber is also supplied With an asbestos plug 29 which prevents the accumulation of vapor inthe forward end of the chamber Where it might condense on account of the low temperature at that point.

From the foregoing description it Will be noted that have provided a burner Which is automatic in controlling the fuel supply and Which does not need to be started by the operation of extra valves or appliances but which is started by operating the same valve which regulates the flame when burning normally. It Will further be noted that I have provided a burner which may be easily cleaned as all the deposits from the vaporization of the oils collect in vaporizing box 18 Which may be readily removed by slipping tube 19 up into pipe 12 and unscrewing cap 11. The placement of outlet aperture 20 in the central portion of the top of box 18 is now obvious. This placement gives ample opportunity for the settling of the deposit from the oils before the vapors pass out of aperture 20.

Having described my invention What I claim as neuT and desire to secure by `Letters Patent is v1. In a device of the class described, a generating chamber, a generating box in said chamber, said box being covered and provided with a vapor outlet aperture in the central part of the cover, a hydro-carbon feed pipe leading to said generating box at one end thereof, an outlet pipeleading from the lower part of said generating chamber and projecting Within said chamber above the bottom thereof, and a hydro-'carbon vapor burner connected to said outlet pipe and arranged beneath said generating chamber.

2. 1n a device of the class described, a generating chamber projecting kWithin the lirebox of a stove; a generating box in 'said chamber, said generati-ng `box having an outlet aperture in its top near its center; a hydro-carbon feed pipe leading to'sai'd generating box and connecting With one end thereof; van outlet pipe leading V'from said generating chamber Within the fire box and connecting with a 'needle valve, said needle valve projecting through an air inlet aperture in the firebox casing; and a mixing tube on the inner end of said needle valve.

1n witness that Iclaim the foregoing 1 have hereunto subscribed my name this v9th doy of September, 1907.

, THOMAS MUEHLEISEN.

VVitnesseSt` EDMUND A. STRAUSE, OLLIE PALMER. 

